<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>404 - 页面未找到</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            background-color: #f4f4f4;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            color: #333;
        }
        .container {
            text-align: center;
            background-color: #fff;
            padding: 40px;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
            max-width: 500px;
            width: 100%;
        }
        h1 {
            font-size: 80px;
            color: #f44336;
            margin: 0;
        }
        p {
            font-size: 18px;
            margin: 20px 0;
        }
        .button {
            display: inline-block;
            padding: 10px 20px;
            background-color: #4CAF50;
            color: #fff;
            text-decoration: none;
            border-radius: 5px;
            font-size: 16px;
            transition: background-color 0.3s;
        }
        .button:hover {
            background-color: #45a049;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>404</h1>
        <p>哎呀！我们找不到您请求的页面。</p>
        <a href="/" class="button">返回首页</a>
    </div>
</body>
</html>
